Clean Water Act discharge permit · NPDES WA0020699

METALINE STP, Metaline, WA: NPDES WA0020699 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
6Pollutants with an effluent exceedance
1Inspections on file
0Formal enforcement actions

METALINE STP, held by Town of Metaline, holds NPDES permit WA0020699. EPA’s file records it issued December 4, 2018 and expiring December 31, 2023.

METALINE STP, Metaline, Washington: Individual permit WA0020699, held by Town of Metaline; Publicly owned treatment works; Effective; issued December 4, 2018, term to December 31, 2023, by State.

Solids, total suspended: 0 limits, 318 violations of any kind, 32 effluent exceedances, latest June 30, 2026, largest 635% over the limit.
Coliform, fecal general: 0 limits, 87 violations of any kind, 22 effluent exceedances, latest November 30, 2025, largest 99,999% over the limit.
BOD, 5-day, 20 deg. C: 0 limits, 302 violations of any kind, 3 effluent exceedances, latest June 30, 2011, largest 49% over the limit.
Nitrogen, ammonia total [as N]: 0 limits, 52 violations of any kind, 1 effluent exceedance, latest December 31, 2025, largest 1,810% over the limit.
BOD, percent removal [total]: 0 limits, 2 violations of any kind, 1 effluent exceedance, latest June 30, 2011, largest 25% over the limit.
Solids, suspended percent removal: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest February 28, 2025, largest 7% over the limit.
Nitrite + Nitrate total [as N]: 0 limits, 49 violations of any kind, 0 effluent exceedances.
pH: 0 limits, 42 violations of any kind, 0 effluent exceedances.
Flow: 0 limits, 25 violations of any kind, 0 effluent exceedances.
Temperature, water deg. centigrade: 0 limits, 6 violations of any kind, 0 effluent exceedances.
pH, maximum: 0 limits, 2 violations of any kind, 0 effluent exceedances.
pH, minimum: 0 limits, 1 violation of any kind, 0 effluent exceedances.

March 11, 2026: Evaluation (S).

Washington holds 238 Publicly owned treatment works coverages of this permit type in EPA’s file; 207 were issued before WA0020699.

Coverages issued nearest WA0020699

October 31, 2018: MUKILTEO WATER AND WASTEWATER DISTRICT WWTP, Mukilteo, WA0023396, held by MUKILTEO WATER & WASTEWATER DISTRICT
November 9, 2018: ELLENSBURG POTW, Ellensburg, WA0024341, held by City of Ellensburg
November 19, 2018: CLALLAM BAY STP, Clallam Bay, WA0024431, held by Clallam County Public Works Department
November 27, 2018: ALDERWOOD STP, Edmonds, WA0020826, held by Alderwood Water & Wastewater District
November 28, 2018: MONROE STP, Monroe, WA0020486, held by MONROE CITY
December 11, 2018: PORT ORCHARD WWTP, Port Orchard, WA0020346, held by South Kitsap Water Reclamation Facility
December 21, 2018: SEDRO WOOLLEY WWTP, Sedro-Woolley, WA0023752, held by City of Sedro-Woolley
December 21, 2018: NORTH BEND STP, North Bend, WA0029351, held by City of North Bend
December 28, 2018: BUENA POTW, Buena, WA0052132, held by Yakima Co Public Services Buena
February 8, 2019: LYNNWOOD STP, Edmonds, WA0024031, held by City of Lynnwood

METALINE STP among its neighbors

EPA’s permit file holds 4 discharge permits in the Sweet Creek-Pend Oreille River subwatershed (HUC 170102160302), WA0020699 among them. Its county holds 19, 1 of them major permits; WA0020699 is a minor permit.

Other permits in the Sweet Creek-Pend Oreille River subwatershed (HUC 170102160302)

IONE STP, Ione: WA0045373, minor permit, permit term to May 31, 2013
SELKIRK HIGH SCHOOL IONE, Ione: WAR315730, minor permit, permit term to December 31, 2030
SELKIRK SCHOOL DIST 70, Ione: WA0044938, minor permit, permit term to June 30, 2023

Identity

Facility as filed	METALINE STP
Permittee as filed	Town of Metaline
NPDES ID	WA0020699
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	December 4, 2018
Expiration date	December 31, 2023
Issuing agency	State
Address	Metaline, WA 99152
Receiving water impaired	303(D) Listed
Subwatershed	Sweet Creek-Pend Oreille River (HUC 170102160302)
Program components on file	POTW, Pretreatment
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

12Pollutants on file
0Under a numeric limit
12With a violation of any kind
6With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, total suspended	318	32	June 30, 2026	635% over the limit
Coliform, fecal general	87	22	November 30, 2025	99,999% over the limit
BOD, 5-day, 20 deg. C	302	3	June 30, 2011	49% over the limit
Nitrogen, ammonia total [as N]	52	1	December 31, 2025	1,810% over the limit
BOD, percent removal [total]	2	1	June 30, 2011	25% over the limit
Solids, suspended percent removal	1	1	February 28, 2025	7% over the limit
Nitrite + Nitrate total [as N]	49	0
pH	42	0
Flow	25	0
Temperature, water deg. centigrade	6	0
pH, maximum	2	0
pH, minimum	1	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES WA0020699.

Inspections

Date	What EPA recorded	Agency
March 11, 2026	Evaluation	S

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES WA0020699.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers Clean Water Act NPDES permit WA0020699 for the METALINE STP in Metaline, WA, held by Town of Metaline, a minor discharger classified as a publicly owned treatment works with pretreatment components on file. The page lists 12 pollutants on file, 6 of them under a numeric limit, 12 with a violation of any kind, and 6 with an effluent exceedance. The permit's recorded status is Effective, with an issue date of December 4, 2018 and an expiration date of December 31, 2023.